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#include "test.h"
#include "vectors.h"
#include "vkvg_context_internal.h"
vkvg_fill_rule_t fillrule = VKVG_FILL_RULE_NON_ZERO;
static VkSampleCountFlags samples = VK_SAMPLE_COUNT_8_BIT;
float lineWidth = 3.0f;
vkvg_line_join_t lineJoin = VKVG_LINE_JOIN_MITER;
vkvg_line_cap_t lineCap = VKVG_LINE_CAP_BUTT;
bool isClosed = false;
bool startWithArc = false, endWithArc = false;
float angle = 0;
float r;
vec2 mouse;
void draw() {
angle += 0.001f;
VkvgContext ctx = vkvg_create(surf);
vkvg_clear(ctx);
float r = fabsf(test_width / 2 - mouse.x) / zoom;
vkvg_new_path(ctx);
vkvg_set_source_rgba(ctx, 1, 0, 0, 1);
vkvg_set_line_width(ctx, lineWidth / zoom);
vkvg_translate(ctx, test_width / 2, test_height / 2);
vkvg_scale(ctx, zoom, zoom);
// vkvg_rotate (ctx, angle);
vkvg_matrix_t mat;
vkvg_get_matrix(ctx, &mat);
float sx, sy;
vkvg_matrix_get_scale(&mat, &sx, &sy);
vkvg_arc(ctx, 0, 0, r, 0, M_PIF * 2);
vkvg_fill(ctx);
float steps = _get_arc_step(ctx, r);
vkvg_identity_matrix(ctx);
vkvg_set_source_rgba(ctx, 1, 1, 1, 1);
char txt[100];
sprintf(txt, "scale: %f, %f", sx, sy);
vkvg_move_to(ctx, 10, 10);
vkvg_show_text(ctx, txt);
sprintf(txt, "angle: %f", angle);
vkvg_move_to(ctx, 10, 25);
vkvg_show_text(ctx, txt);
sprintf(txt, "radius: %f", r);
vkvg_move_to(ctx, 10, 40);
vkvg_show_text(ctx, txt);
sprintf(txt, "zoom: %f", zoom);
vkvg_move_to(ctx, 10, 55);
vkvg_show_text(ctx, txt);
sprintf(txt, "arc step: %f", steps);
vkvg_move_to(ctx, 10, 70);
vkvg_show_text(ctx, txt);
sprintf(txt, "steps: %d", (int)roundf(2.0f * M_PI / steps));
vkvg_move_to(ctx, 10, 85);
vkvg_show_text(ctx, txt);
vkvg_destroy(ctx);
}
static void key_callback(GLFWwindow *window, int key, int scancode, int action, int mods) {
if (action != GLFW_PRESS)
return;
switch (key) {
case GLFW_KEY_ESCAPE:
glfwSetWindowShouldClose(window, GLFW_TRUE);
break;
case GLFW_KEY_KP_ADD:
zoom *= 2.0f;
break;
case GLFW_KEY_KP_SUBTRACT:
zoom *= 0.5f;
break;
#ifdef VKVG_WIRED_DEBUG
case GLFW_KEY_F1:
vkvg_wired_debug ^= (1U << 0);
break;
case GLFW_KEY_F2:
vkvg_wired_debug ^= (1U << 1);
break;
case GLFW_KEY_F3:
vkvg_wired_debug ^= (1U << 2);
break;
#endif
}
}
static void mouse_move_callback(GLFWwindow *window, double x, double y) {
if (mouseDown) {
mouse = (vec2){x, y};
}
}
static void scroll_callback(GLFWwindow *window, double x, double y) {
if (y < 0.f)
zoom *= 0.5f;
else
zoom *= 2.0f;
}
static void mouse_button_callback(GLFWwindow *window, int but, int state, int modif) {
if (but != GLFW_MOUSE_BUTTON_1)
return;
if (state == GLFW_TRUE)
mouseDown = true;
else
mouseDown = false;
}
int main(int argc, char *argv[]) {
_parse_args(argc, argv);
VkEngine e;
e = vkengine_create(VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU, VK_PRESENT_MODE_FIFO_KHR, test_width, test_height);
VkhPresenter r = e->renderer;
vkengine_set_key_callback(e, key_callback);
vkengine_set_mouse_but_callback(e, mouse_button_callback);
vkengine_set_cursor_pos_callback(e, mouse_move_callback);
vkengine_set_scroll_callback(e, scroll_callback);
bool deferredResolve = false;
device = vkvg_device_create_from_vk_multisample(vkh_app_get_inst(e->app), r->dev->phy, r->dev->dev, r->qFam, 0,
samples, deferredResolve);
surf = vkvg_surface_create(device, test_width, test_height);
vkh_presenter_build_blit_cmd(r, vkvg_surface_get_vk_image(surf), test_width, test_height);
mouse = (vec2){test_width * 0.75, test_height * 0.5f};
while (!vkengine_should_close(e)) {
glfwPollEvents();
draw();
if (!vkh_presenter_draw(r)) {
vkh_presenter_get_size(r, &test_width, &test_height);
vkvg_surface_destroy(surf);
surf = vkvg_surface_create(device, test_width, test_height);
vkh_presenter_build_blit_cmd(r, vkvg_surface_get_vk_image(surf), test_width, test_height);
vkDeviceWaitIdle(r->dev->dev);
continue;
}
}
vkDeviceWaitIdle(e->dev->dev);
vkvg_surface_destroy(surf);
vkvg_device_destroy(device);
vkengine_destroy(e);
return 0;
}
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